Hello, despite all data and stats IMHO ASM sucks. ASM is an additional layer, managed through an Oracle instance to manage files in a strange manner.I've never seen a big oracle installation, for example in a TLC environment where I work using ASM. All tests over ASM usually fails. Actually use of pure raw devices should be preferable, better if using 8gbit fiber instead iscsi on a 1gb ethernet. Yes, managing raw devices is not easy and usually is not a DBA work. Also, type of storage is really important. Ste -- http://www.stefanocislaghi.eu